ARMY TM 10-1670-281-23&P
AIR FORCE T.O. 13C5-32-2
NAVY NAVAIR 13-1-32
2-49. Riser Extension Cover End Reinforcement.
This task covers: Repair
Knife, Item 4, Appendix B
Cleaned, Paragraph 2-12
Knife, Hot Metal, Item 5, Appendix B
Inspected, Paragraphs 2-9, 2-13
Sewing Machine, Medium-Duty, Item 19, Appendix B
Laid out on work table
Yardstick, Item 24, Appendix B
Thread Nylon, Size E, Item 39/40, Appendix D
Webbing, Nylon, Type 1, 9/16-Inch Wide,
Item 52/53, Appendix D
a. Restitching. Stitch and restitch broken or loose stitching with size 3 nylon thread which matches the
color of the original stitching, when possible. Lock all straight stitching by backstitching at least 1/2 inch.
Restitch by overstitching each end of the stitch formation by 1/2 inch. Restitch directly over the original
stitching, following the original stitch pattern as closely as possible. Stitch according to para. 2-19 and table 2-3.
b. Splicing. A riser cover end reinforcement may be spliced an unlimited number of times as follows:
Cut a length of 9/16-inch wide, type I nylon webbing long enough to extend 1 inch beyond each
side of the damaged area and sear the ends.
Center the webbing length over the damaged area and secure the splice by stitching a box-
stitch formation, 1/8 inch in from each edge, the full length of the splice material. Stitching will
be made with a medium-duty sewing machine using size E nylon thread, 7 to 11 stitches per